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SEALMASTER Pillow Block Bearing: 3 1/2 in Bore, 4 Holes, 3 3/4 in Shaft Ht - Fixed Split-House Pillow Block Tapered Roller Bearings
SEALMASTERFixed Split-House Pillow Block Tapered Roller Bearings

SEALMASTER Pillow Block Bearing: 3 1/2 in Bore, 4 Holes, 3 3/4 in Shaft Ht

The SEALMASTER Pillow Block Bearing (SKU 44A505, MPN RPB 308-4) is a fixed split-house pillow block tapered roller bearing with a 3 1/2 in bore. It features a 3 3/4 in shaft height, 11 1/64 in mounting length, 4…

SKU 3G-OTH-100521

Brand
SEALMASTER
Item
Pillow Block Bearing: 3 1/2 in Bore, 4 Holes, 3 3/4 in Shaft Ht
Category
Fixed Split-House Pillow Block Tapered Roller Bearings
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Technical Specifications

SEALMASTER
Manufacturer Part Number
RPB 308-4
Holes
4
Mount Lg
11 1/64 in
Shaft Ht
3 3/4 in
Maximum Speed
1,500 RPM
Mounting Bolt Size
3/4 in
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SEALMASTER Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The SEALMASTER Pillow Block Bearing (SKU 44A505, MPN RPB 308-4) is a fixed split-house pillow block tapered roller bearing with a 3 1/2 in bore. It features a 3 3/4 in shaft height, 11 1/64 in mounting length, 4 holes, and a 3/4 in mounting bolt size, with a maximum speed of 1,500 RPM.

Frequently Asked Questions

What is a SEALMASTER pillow block bearing used for?

A SEALMASTER fixed split-house pillow block tapered roller bearing supports rotating shafts in heavy-duty industrial applications like conveyors, fans, and material handling systems. Its split housing simplifies maintenance and replacement without removing the shaft.

What are the specifications of the SEALMASTER RPB 308-4 bearing?

The SEALMASTER RPB 308-4 has a 3 1/2 in bore, 3 3/4 in shaft height, 11 1/64 in mounting length, 4 holes, and a 3/4 in mounting bolt size. Maximum speed is 1,500 RPM. It is a fixed split-house pillow block tapered roller bearing.

Where to buy SEALMASTER pillow block bearings worldwide?

3G Electric supplies SEALMASTER pillow block bearings worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for pricing and lead time on the RPB 308-4 or other SEALMASTER models.

How to install a SEALMASTER split-house pillow block bearing?

Align the bearing housing on a flat, rigid support and bolt it down using the 3/4 in mounting bolts. Insert the shaft through the bore, tighten the locking collar, and ensure free rotation. Lubricate per manufacturer guidelines before operation.

Used in

Common applications for SEALMASTER
Conveyor systems — SEALMASTER NP series pillow block bearings for belt conveyor idler shafts
Material handling fans — SEALMASTER SFT series flange bearings for fan housing mounting
Pump drives — SEALMASTER MP series medium-duty pillow blocks for pump shaft support
Agricultural equipment — SEALMASTER ER series insert bearings in auger and elevator assemblies
Packaging machinery — SEALMASTER NPL low-base pillow blocks for compact conveyor sections
Industrial blowers — SEALMASTER SFT-23 flange bearing for blower shaft end support

SEALMASTER Products

3G Electric supplies SEALMASTER fixed split-house pillow block tapered roller bearings. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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